From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
To: jdmason@kudzu.us, dave.jiang@intel.com, allenbh@gmail.com,
lpieralisi@kernel.org, kw@linux.com, mani@kernel.org,
kishon@kernel.org, bhelgaas@google.com
Cc: ntb@lists.linux.dev, linux-pci@vger.kernel.org,
linux-kernel@vger.kernel.org,
Jiasheng Jiang <jiasheng@iscas.ac.cn>
Subject: [PATCH] PCI: endpoint: pci-epf-vntb: Add missing check for alloc_workqueue
Date: Wed, 4 Jan 2023 17:08:08 +0800 [thread overview]
Message-ID: <20230104090808.46085-1-jiasheng@iscas.ac.cn> (raw)
Add check for the return value of alloc_workqueue since it may return
NULL pointer.
Fixes: e35f56bb0330 ("PCI: endpoint: Support NTB transfer between RC and EP")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
---
drivers/pci/endpoint/functions/pci-epf-vntb.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/pci/endpoint/functions/pci-epf-vntb.c b/drivers/pci/endpoint/functions/pci-epf-vntb.c
index 04698e7995a5..05c99185ba65 100644
--- a/drivers/pci/endpoint/functions/pci-epf-vntb.c
+++ b/drivers/pci/endpoint/functions/pci-epf-vntb.c
@@ -1441,6 +1441,9 @@ static int __init epf_ntb_init(void)
kpcintb_workqueue = alloc_workqueue("kpcintb", WQ_MEM_RECLAIM |
WQ_HIGHPRI, 0);
+ if (!kpcintb_workqueue)
+ return -ENOMEM;
+
ret = pci_epf_register_driver(&epf_ntb_driver);
if (ret) {
destroy_workqueue(kpcintb_workqueue);
--
2.25.1
next reply other threads:[~2023-01-04 9:16 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-04 9:08 Jiasheng Jiang [this message]
2023-04-08 9:33 ` [PATCH] PCI: endpoint: pci-epf-vntb: Add missing check for alloc_workqueue Manivannan Sadhasivam
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230104090808.46085-1-jiasheng@iscas.ac.cn \
--to=jiasheng@iscas.ac.cn \
--cc=allenbh@gmail.com \
--cc=bhelgaas@google.com \
--cc=dave.jiang@intel.com \
--cc=jdmason@kudzu.us \
--cc=kishon@kernel.org \
--cc=kw@linux.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
--cc=lpieralisi@kernel.org \
--cc=mani@kernel.org \
--cc=ntb@lists.linux.dev \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).